RU2794399C1 - Device for removing shut-off body of ball valve with top connector without disconnection from pipeline - Google Patents

Abstract

FIELD: general engineering.

SUBSTANCE: device for extracting the shut-off element of a ball valve with an upper connector without disconnecting from the pipeline comprises plate 8 and base 10, which are connected by connecting means and an adjusting means, and fasteners are placed in the base. Fasteners are made with the possibility of fixed attachment of the device to upper flange 9 of the body of the ball valve. The connecting means connect base 10 with plate 8, with the possibility of their movement relative to each other. Moving the expanding end of plate 8 relative to seat 2 and expanding seat 2 for subsequent removal of the shut-off valve from the valve. Plate 8 has an expanding end and a connecting end, the shape of the expanding end of plate 8 repeating the shape of valve seat 2, and the expanding end is made with the possibility of adjoining valve seat 2, and the connecting end of plate 8 is connected to the connecting means and the adjusting means. The adjusting means is made with the possibility of changing the angle of inclination of plate 8 by moving the connecting end of plate 8 relative to the base, while more accurately moving the expanding end of plate 8 relative to the 2 and expanding seat 2 for subsequent removal of the shut-off valve from the valve.

EFFECT: creation of a device for extracting the shut-off body of a ball valve with an upper connector without disconnecting it from the pipeline, which makes it possible to simplify and speed up the repair of the shut-off body of a ball valve, due to the possibility of repair without disconnecting from the pipeline.

6 cl, 4 dwg

Description

The invention relates to the field of general engineering, and in particular to devices for removing the shut-off body of a ball valve with a top connector without disconnecting from the pipeline and can be used to repair ball valves with a top connector.

Closest to the claimed invention is a device for expanding the flanges of a ball valve without disconnecting from the pipeline, described in the RF patent for utility model No. 183269. This device is selected as a prototype of the claimed invention.

The disadvantage of the prototype device is the inability to repair a ball valve with a top connector, namely the inability to remove the shut-off body of a ball valve with a top connector.

The technical result of the invention is the creation of a device for extracting the shut-off body of a ball valve with an upper connector without disconnecting it from the pipeline, which makes it possible to simplify and speed up the repair of the shut-off body of a ball valve, due to the possibility of repair without disconnecting from the pipeline.

The set technical result is achieved by creating a device for extracting the shut-off body of a ball valve with an upper connector without disconnecting from the pipeline, containing a plate 8 and a base 10, which are connected by connecting means and an adjusting means, and fasteners are placed at the base, moreover

- fasteners are made with the possibility of fixed fastening of the device to the upper flange 9 of the body of the ball valve;

- connecting means connect the base 10 with the plate 8, with the possibility of their movement relative to each other, while moving the expanding end of the plate 8 relative to the seat 2 and expanding the seat 2 for subsequent removal of the shut-off valve from the valve;

- plate 8 has an expanding end and a connecting end, the shape of the expanding end of the plate 8 repeats the shape of the valve seat 2, and the expanding end is made with the possibility of adjoining the valve seat 2, and the connecting end of the plate 8 is connected to the connecting means and the adjusting means;

- the adjusting means is configured to change the angle of inclination of the plate 8 by moving the connecting end of the plate 8 relative to the base, while more accurately moving the expanding end of the plate 8 relative to the seat 2 and expanding the seat 2 for subsequent removal of the shut-off valve from the valve.

In the preferred embodiment of the device, the connecting means is made in the form of a connecting stud 11 with fastening nuts 13 installed on it, while the first end of the connecting stud 11 is screwed into the plate 8 and secured with a fastening nut 13, and the second end is placed in the base 10 and a fastening screw is screwed onto it. nut 13, and the second end of the connecting pin 11 is movable inside the base 10.

In the preferred embodiment of the device, the fastening means is made in the form of a fastening pin 12, which is placed in the base 10, and the first end of the fastening pin 12 is configured to be placed in the fastening hole of the upper flange 9 of the ball valve body, while the upper flange 9 and the base 10 are made with the possibility of fixed attachment to each other by tightening the fixing nuts 13 on the first and second ends of the fixing pin 12.

In the preferred embodiment of the device, the adjusting means is made in the form of a rod 15, the first end of which is screwed into the plate 8 and fixed with a fixing nut 13, and the second end of which is located in the base 10 and in the sleeve 16, and the adjusting nut 14 is screwed onto it, and the adjusting nut 14 is made with twisting or unscrewing on the rod 15, while moving the rod 15 by pressing on the plate 8 through the sleeve 16 and thereby changing the angle of the plate 8.

In the preferred embodiment of the device, the first end of the sleeve 16 has a thread screwed into the base 10 and secured with a fastening nut 13, and an adjusting nut 13 adjoins the second end of the sleeve 16.

In a preferred embodiment of the device, the expandable end is made with the possibility of adjoining the shoulder 7 of the seat 2 of the crane.

For a better understanding of the claimed invention, the following is a detailed description with the corresponding drawings.

Fig. 1. General view in angular section of a ball valve with a top connector, made according to the invention.

Fig. 2. General view of the body of a ball valve with a top connector, made according to the invention.

Fig. 3. Seat of a top entry ball valve made according to the invention.

Fig. 4. A device for extracting the shut-off body of a ball valve made according to the invention: a) general view; b) side sectional view; c) side sectional view of the spindle assembly.

Elements:

1 - branch pipe;

2 - saddle;

3 – top case cover;

4 - spindle;

5 - ball plug;

6 - lower support;

7 - shoulder;

8 - plate;

9 - top flange;

10 - base;

11 - connecting pin;

12 - mounting pin;

13 - fixing nut;

14 - adjusting nut;

15 - stock;

16 - bushing;

17 - washer.

Let us consider in more detail the functioning of the claimed device for extracting the shut-off body of a ball valve with an upper connector without disconnecting from the pipeline.

A ball valve with a top connector contains a body with an upper flange 9 and nozzles 1. Seats 2 are located in the body. Seats 2 interact with a ball plug 5. Ball plug 5 is located between the seats 2 on the spindle 4 and the lower support 6. side of the ball plug 5. Each seat 2 on the side of the ball plug 5 is provided with a collar 7 with a cylindrical thrust surface.

To expand the seats 2 of the ball valve and the possibility of extracting the ball plug 5 and the seats 2, the claimed device for expanding the seats is provided. The seat unclamping device contains a plate 8 with a cylindrical groove for the profile of the seat of the thrust surface of the seat 2. The use of the profile of the plate 8 corresponding to the profile of the seat of the thrust surface of the seat 2 makes it possible to securely connect the plate 8 and the seat 2, as well as to increase the surface area of their contact, and thereby preventing the plate 8 and seat 2 from breaking or slipping relative to each other, and ensuring uniform movement of the seat 2 in the body without jamming.

The seat release device is fixed with the help of mounting studs 12 and mounting nuts 13 in the mounting holes on the upper flange 9 of the ball valve body. This mount provides a rigid and reliable fixation of the device. The location of the mounting holes on the upper flange 9 of the body allows you to center the spreader exactly relative to the seats 2.

After fixing the base 10 of the device for expanding the seats on the upper flange 9 of the body, using the fixing pins 12 and fixing nuts 13, the plate 8 is installed in the collar 7 of the seat 2 of the ball valve. Then the plate 8 is connected to the base 10 with the help of connecting pins 11, fixing nuts 13, and washers 17, and the connection is pretensioned.

After a similar installation on the upper flange of the required number of claimed devices, the fixing nuts 13 are uniformly tightened on the fixing studs 12, which leads to the expansion of the seats 2 from the ball plug 5 into the valve body.

The spreading device allows you to adjust the angle of inclination of the plate 8 relative to the vertical plane, by clamping or loosening the adjusting nut 14 and the sleeve 16, as a result of which the rod 15 moves and the angle of the plate 8 changes for its more accurate positioning relative to the seat 2.

The claimed device for extracting the shut-off body of a ball valve with an upper connector without disconnecting from the pipeline has the following advantages. It allows carrying out repair work with the replacement of the entire shut-off element without dismantling the valve, that is, without disconnecting the valve from the pipeline. Eliminates the breakdown of the unclamping device from the seat during operation, due to the increased contact area of the seat of the plate 8, which repeats the profile of the seat. Provides independent (from adjacent seats 2) unclamping of seats 2 and secure fixation in the unclenched position, thereby allowing for the replacement and revision of each seat 2 separately. Has a rigid structure. Can be used for valves with both metal-to-polymer and heavy-duty metal-to-metal seals. Eliminates the need to install a fourth blind seat 2 on the valve, which reduces the torque on the valve stem.

Although the embodiment of the claimed invention described above has been set forth for the purpose of illustrating the claimed invention, it will be clear to those skilled in the art that various modifications, additions and substitutions are possible without departing from the scope and spirit of the claimed invention as disclosed in the appended claims.

Claims (10)

1. A device for extracting the shut-off body of a ball valve with an upper connector without disconnecting from the pipeline, containing a plate 8 and a base 10, which are connected by connecting means and an adjusting means, and fasteners are placed at the base, moreover - fasteners are made with the possibility of fixed fastening of the device to the upper flange 9 of the body of the ball valve; - connecting means connect the base 10 with the plate 8, with the possibility of their movement relative to each other, to move the expansion end of the plate 8 relative to the seat 2 and expand the seat 2 with subsequent removal of the shut-off valve from the valve; - plate 8 has an expanding end and a connecting end, the shape of the expanding end of the plate 8 repeats the shape of the valve seat 2, and the expanding end is made with the possibility of adjoining the valve seat 2, and the connecting end of the plate 8 is connected to the connecting means and the adjusting means; - the adjusting means is configured to change the angle of inclination of the plate 8 by moving the connecting end of the plate 8 relative to the base, for more accurate movement of the expansion end of the plate 8 relative to the seat 2 and the expansion of the seat 2, followed by the removal of the shut-off valve from the valve. 2. The device according to claim 1, characterized in that the connecting means is made in the form of a connecting stud 11 with fixing nuts 13 installed on it, while the first end of the connecting stud 11 is screwed into the plate 8 and secured with a fixing nut 13, and the second end is placed in base 10 and a fastening nut 13 is screwed onto it, and the second end of the connecting pin 11 is made movable inside the base 10. 3. The device according to claim. 1, characterized in that the fastening means is made in the form of a fastening pin 12, which is placed in the base 10, and the first end of the fastening pin 12 is configured to be placed in the mounting hole of the upper flange 9 of the ball valve body, while the upper flange 9 and base 10 are made with the possibility of fixed attachment to each other by tightening the fixing nuts 13 on the first and second ends of the fixing pin 12. 4. The device according to claim 1, characterized in that the adjusting means is made in the form of a rod 15, the first end of which is screwed into the plate 8 and secured with a fixing nut 13, and the second end of which is located in the base 10 and in the sleeve 16, and is screwed onto it adjusting nut 14, and the adjusting nut 14 is made with twisting or unscrewing on the rod 15, while moving the rod 15 by pressing on the plate 8 through the sleeve 16 and thereby changing the angle of the plate 8. 5. The device according to claim 4, characterized in that the first end of the sleeve 16 has a thread screwed into the base 10 and secured with a fixing nut 13, and an adjusting nut 13 adjoins the second end of the sleeve 16. 6. The device according to claim. 1, characterized in that the expanding end is made with the possibility of adjoining the shoulder 7 of the seat 2 of the crane.

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